Bathys MG

Released April 2025

The Bathys MG are Focal's noise-cancelling over-ear Bluetooth headphones with magnesium drivers, suited to listeners who want hi-fi sound on the move and can also use them as a USB DAC.

Type: Over-ear
Noise cancelling: Yes
Battery: 30 h
With case: –
Best codec: aptX Adaptive
Weight: 350 g

What reviewers say

Reviewers agree these are among the best-sounding wireless headphones, expansive and detailed, with premium build and finish. The high price is the common reservation, with SoundStage! Solo doubting the value; TechRadar found the treble slightly strident and the noise cancelling ordinary, while What Hi-Fi? rates the noise cancelling very good but thinks the styling may be too flashy for some.

From whathifi.com, techradar.com and soundstagesolo.com

Specifications

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Sound

Type: Over-ear
Noise cancelling: Yes
Transparency mode: Yes
Driver size: 40 mm
Bluetooth codecs: SBC, AAC, aptX and aptX Adaptive
Lossless over USB-C: Yes
Drivers: Magnesium drivers with 'M'-shaped domes, made in France; 10 Hz to 22 kHz (±3 dB); harmonic distortion < 0.2% at 1 kHz
Noise cancelling detail: Two noise-reduction modes (Silent, the strongest, and Soft, which cuts low-frequency noise) plus a Transparency mode, chosen with a button on the left ear cup or in the app
Audio features: USB-DAC mode up to 24-bit/192 kHz over USB-C; EQ with presets and custom settings plus a Mimi hearing test in the Focal & Naim app

Battery

Listening time (maker's claim): Up to 30 hours
Battery life detail: 1,060 mAh lithium-ion battery; 30 hours over Bluetooth with noise cancelling, 35 hours in jack mode, 42 hours in USB-DAC mode; full charge in about 1.5 hours with a 2 A adaptor
Fast charging: 15 minutes for about 5 hours (with a 2 A adaptor)

Design

Weight: 350 g
Bluetooth: 5.2
Two devices at once: Yes
Headphone cable: Yes
Controls: Power/DAC slide switch; multifunction button, + and – buttons; ANC/transparency button on the left ear cup; voice assistant button on the right ear cup; backlit logo that can be switched off in the app
Microphones: Eight microphones with Clear Voice technology for calls
Fit and ear tips: Around-the-ear, closed-back; genuine leather and microfibre headband, magnesium yoke, aluminium construction; clip-on earpads are replaceable
Works with: Focal & Naim app for iOS and Android; Google Fast Pair; two devices at once, up to eight remembered; 3.5 mm jack input on the right ear cup (switches off Bluetooth)
Colours: Graphen Grey, Chestnut
In the box: Headphones, rigid carrying case (24 x 21 x 7 cm), 1.2 m 3.5 mm jack cable, 1.2 m USB-C cable, quick start guide

Pros and cons

Pros

USB-DAC mode up to 24-bit/192 kHz, with 42 hours of battery in that mode
40 mm magnesium 'M'-shaped dome drivers, made in France
aptX Adaptive, multipoint and Google Fast Pair

Cons

Heavy for travel headphones at 350 g
No LDAC or aptX Lossless over Bluetooth

Closest rivals

Model	Type	Noise cancelling	Battery	With case	Best codec	Weight	Released
BoseQuietComfort Ultra Headphones (2nd Gen)	Over-ear	Yes	30 h	–	aptX Adaptive	264 g	Sept 2025
Bowers & WilkinsPx7 S3	Over-ear	Yes	30 h	–	aptX Lossless	300 g	Apr 2025
Bowers & WilkinsPx8 S2	Over-ear	Yes	30 h	–	aptX Lossless	310 g	Sept 2025

Sources

Photo: dam.focal-naim.com

Bathys MG — Graphen Grey finish, front: Focal; exact published product gallery.
Bathys MG — Graphen Grey finish, right profile with illuminated logo: Focal; exact published product gallery.
Bathys MG — Graphen Grey headphones in supplied carrying case, open: Focal; exact published product gallery.
Bathys MG — Graphen Grey finish, earcups rotated flat: Focal; exact published product gallery.
Bathys MG — Graphen Grey finish, earcup buttons detail: Focal; exact published product gallery.

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